热力发电Issue(10)：74-78,5.DOI:10.3969/j.issn.1002-3364.2014.10.074
热解温度对高水分印尼褐煤半焦孔隙特性及燃烧特性的影响
Effects of pyrolysis temperature on pore structure and combustion characteristics of high-moisture Indonesia lignite semi-coke
摘要
Abstract
The N2 adsorption isothermal and thermo-gravimetric analysis was carried out to study the char-acteristics of semi-coke generated by high-moisture Indonesia lignite at different pyrolysis temperatures. The results indicate that,within the pyrolysis temperature range of 500 ℃ to 550 ℃,the surface area and pore volume of the semi-coke decreased first and then increased,finally they leveled off at 650 ℃.Under the same pyrolysis conditions,the char derived from high-moisture Indonesia lignite had much more devel-oped pore structure than that from the lignite with low moisture.The thermo-gravimetric analysis suggests that,with an increase in pyrolysis temperature,the maximum weight loss rate of the chars during combus-tion decreased first and then increased a little,it reached the minimum value at about 600 ℃.The activation energy of the char during combustion increased with the pyrolysis temperature.关键词
热解温度/高水分/褐煤半焦/孔隙结构/燃烧速率/活化能Key words
pyrolysis temperature/high moisture content/lignite semi-coke/pore structure/burning rate/ac-tivation energy分类
能源科技引用本文复制引用
胡召永,解桂林,郭志航,王勤辉,方梦祥,骆仲泱,岑可法..热解温度对高水分印尼褐煤半焦孔隙特性及燃烧特性的影响[J].热力发电,2014,(10):74-78,5.基金项目
国家高技术研究发展计划(863)课题:低阶煤直接转化与综合利用关键技术开发(2013AA051203) （863）
